You utter a word of death and darkness, and roiling blackness erupts from you. Each creature of your choice that you can see within range must succeed on a Constitution saving throw or take 1d6 necrotic damage and be blinded until the start of your next turn.

The spell’s damage increases by 1d6 when you reach 5th level (2d6), 11th level (3d6), and 17th level (4d6).